EP0638355A1 - Dispositif de dosage - Google Patents

Dispositif de dosage Download PDF

Info

Publication number
EP0638355A1
EP0638355A1 EP94112351A EP94112351A EP0638355A1 EP 0638355 A1 EP0638355 A1 EP 0638355A1 EP 94112351 A EP94112351 A EP 94112351A EP 94112351 A EP94112351 A EP 94112351A EP 0638355 A1 EP0638355 A1 EP 0638355A1
Authority
EP
European Patent Office
Prior art keywords
additive
injection
base material
control device
volume flow
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP94112351A
Other languages
German (de)
English (en)
Inventor
Alfred Böhm
Dieter Lerach
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ultrakust Electronic GmbH
Original Assignee
Ultrakust Electronic GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ultrakust Electronic GmbH filed Critical Ultrakust Electronic GmbH
Publication of EP0638355A1 publication Critical patent/EP0638355A1/fr
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
    • B67D7/00—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes
    • B67D7/06—Details or accessories
    • B67D7/74—Devices for mixing two or more different liquids to be transferred
    • B67D7/743—Devices for mixing two or more different liquids to be transferred electrically or electro-mechanically operated
    • B67D7/744—Devices for mixing two or more different liquids to be transferred electrically or electro-mechanically operated involving digital counting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/20—Measuring; Control or regulation
    • B01F35/22—Control or regulation
    • B01F35/2201—Control or regulation characterised by the type of control technique used
    • B01F35/2209—Controlling the mixing process as a whole, i.e. involving a complete monitoring and controlling of the mixing process during the whole mixing cycle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/80—Forming a predetermined ratio of the substances to be mixed
    • B01F35/83—Forming a predetermined ratio of the substances to be mixed by controlling the ratio of two or more flows, e.g. using flow sensing or flow controlling devices
    • B01F35/831—Forming a predetermined ratio of the substances to be mixed by controlling the ratio of two or more flows, e.g. using flow sensing or flow controlling devices using one or more pump or other dispensing mechanisms for feeding the flows in predetermined proportion, e.g. one of the pumps being driven by one of the flows
    • B01F35/8311—Forming a predetermined ratio of the substances to be mixed by controlling the ratio of two or more flows, e.g. using flow sensing or flow controlling devices using one or more pump or other dispensing mechanisms for feeding the flows in predetermined proportion, e.g. one of the pumps being driven by one of the flows with means for controlling the motor driving the pumps or the other dispensing mechanisms
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D11/00—Control of flow ratio
    • G05D11/02—Controlling ratio of two or more flows of fluid or fluent material
    • G05D11/13—Controlling ratio of two or more flows of fluid or fluent material characterised by the use of electric means
    • G05D11/131—Controlling ratio of two or more flows of fluid or fluent material characterised by the use of electric means by measuring the values related to the quantity of the individual components
    • G05D11/132—Controlling ratio of two or more flows of fluid or fluent material characterised by the use of electric means by measuring the values related to the quantity of the individual components by controlling the flow of the individual components
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
    • B67D7/00—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes
    • B67D7/06—Details or accessories
    • B67D7/74—Devices for mixing two or more different liquids to be transferred
    • B67D2007/745—Devices for mixing two or more different liquids to be transferred for obtaining fuel of a given octane level
    • B67D2007/748—Devices for mixing two or more different liquids to be transferred for obtaining fuel of a given octane level by mixing fuel with additives, e.g. anti-knocking agents

Definitions

  • the invention relates, on the one hand, to a metering device for supplying an additive to a volume flow of a base material, in particular for additizing a substance when filling fuel oil from a mobile tank vehicle into tanks, with an injection device which delivers the additive from a reservoir to the volume flow of the base material in a predeterminable mixing ratio supplies, and a control device which determines and regulates the volume of the additive to be injected as a function of the volume flow of the base material and, on the other hand, an associated method.
  • a generic metering device is described in G 92 05 585.
  • an additive is supplied to a fuel oil flow in a discharge line via compressed air-operated piston-cylinder units.
  • this metering device has numerous additive lines with check valves. With this metering device, it was possible for the first time to add a metered amount of an additive to a mobile tanker during the fuel oil filling process.
  • the device concerning the object is achieved in a generic device in that the injection device has an axial piston pump with swash plate, that the axial piston pump has a drive for a continuous injection of the additive, and that to maintain the mixing ratio, the injection volume of the additive can be adapted to a variable volume flow of the base material by the control device by regulating the drive, in particular the speed of a drive motor.
  • the additive can be injected continuously, intermittently or according to a predetermined program. Depending on the number of pistons and the stroke volume of an axial piston pump, a precisely defined volume of the additive is sucked in and expelled per revolution of the pump drum.
  • the injection volume can thus be regulated by simple regulation of the rotary drive of the axial piston pump.
  • the drive could be an electric motor, a stepper motor or an internal combustion engine, the speeds of which can be controlled easily and almost without delay.
  • the axial piston pump enables the dosing device to be operated with a very high injection pressure of over 2 x 107 Pa even with mobile tank vehicles.
  • conventional axial piston pumps have two, four, six or eight reciprocating pistons, a quasi-constant injection pressure can be maintained. Due to the good controllability of the injection volume of the additive and the almost constant injection pressure, the additive can be supplied to a variable volume flow of a liquid or gaseous base material with high dosing accuracy.
  • the axial piston pump can be operated intermittently instead of at a low speed.
  • a further development of the metering device according to the invention is that a measuring device is arranged in a line channel through which the volume flow of the base material flows, for the continuous determination of volume flow data and is connected to the control device, and that the measuring device in the direction of flow of the volume flow at an injection port of the additive is arranged.
  • the additive base material can therefore be used for self-mixing after the filling process without additional mechanical mixing or a rest period.
  • the swash plate of the axial piston pump can be pivoted by means of an adjustment mechanism and that the control device controls the adjustment mechanism and / or the speed of the drive motor for free adjustment of the injection volume and the injection pressure of the additive.
  • the stroke volume of the pistons of an axial piston pump can be changed using an adjustable swash plate.
  • the adjustment mechanism makes it possible to regulate the injection volume even when the axial piston pump has a constant drive speed. By simultaneously changing the angle of attack of the swashplate and the drive speed, a very wide range between a minimum and maximum injection volume is achieved.
  • temperature sensors are provided for measuring the temperature of the base material and the additive material and the control device determines temperature-corrected volume flow data.
  • the control device has a memory area in which the volume-temperature function graphs of a multiplicity of basic substances and additive substances are stored. The fabrics used in each case are selected, for example, using a keyboard.
  • the control device uses the measured volume flow data and the additive temperature to calculate the necessary injection volume, which is necessary to achieve the specified mixing ratio under standard conditions. In this way, the desired mixing ratio is always maintained, even with temperature fluctuations and large temperature differences between the base material and the additive.
  • a heater is provided for regulating the temperature of the additive.
  • the heater can be arranged essentially within the storage container and / or in additive-carrying lines or surround it as part of the thermal insulation. The heating is switched on by the control device when the temperature falls below a minimum or is switched off when a maximum temperature is exceeded. This prevents the additive from cooling down too much and crystallizing or paraffinizing.
  • two temperature sensors which are connected as flow monitors, are arranged one behind the other in the flow direction in an additive line.
  • the temperature sensors are connected to the control device.
  • the sensors can be arranged in the flow direction, in front of or behind the axial piston pump.
  • a sensor is located in the air separator / buffer tank and therefore in quasi-still liquid.
  • the temperature of the quasi-stationary medium is determined here.
  • the second temperature sensor which is located in the tapered pipeline and is therefore exposed to a significantly higher flow rate, is heated to a temperature which e.g. 20 ° C above the additive temperature. If the liquid is moved, the second temperature sensor cools down.
  • the energy that must be applied to bring sensor 2 back to the higher temperature is a measure of the flow rate of the medium.
  • control device has a microcontroller that is connected to sensors via an analog / digital converter, that the microcontroller controls the drive, the adjustment mechanism of the swash plate and the heating as actuators, and that a bus interface is provided. Specified information and status messages are exchanged bidirectionally with a higher-level control unit via the bus interface.
  • the computer takes over all control and computing functions, while the analog / digital converter converts the analog signals into computer-compliant digital signals.
  • a switching valve is provided on a feed line between the injection port and the axial piston pump.
  • the switching valve is an electronically controlled 3/2-way valve, which is controlled so that when not injecting, the valve is in the blocking state.
  • the switching valve can advantageously be sealed and / or provided with an electronic control display to prevent unauthorized actuation of the switching valve. Furthermore, a detector device is provided, which detects whether the delivery path is set correctly. If the valve position is not correct, a warning signal and / or a blocking signal is emitted to interrupt the metering process.
  • the additive feed line between the storage container and the axial piston pump has a sight glass with a flow indicator, an air separator, an exchangeable filter and an empty indicator.
  • the sight glass with flow indicator and the empty indicator ensure both optical and electronic filling control.
  • the air separator and the filter prevent air and dirt particles, which impair proper additives, from entering the injection device.
  • the metering device advantageously has a check valve in the area of the injection opening in the feed line.
  • the check valve allows the supply of the additive to the volume flow of the base material, but prevents the base material from penetrating into the additive line.
  • the check valve serves as a purely safety measure if the injection pressure should drop below the pressure of the volume flow of the basic material.
  • the check valve in the area of the injection mouth can also be designed as part of a controllable throttle or injection nozzle and can be actuated by the control device for precise adjustment of the injection pressure.
  • the injection nozzle can protrude into the conduit of the base material.
  • the axial piston pump is detachably attached as a pump unit with a pump unit connector, and that a coding is provided on the pump unit connector, by means of which the control device identifies a pump type used and associated parameters for calculation of the injection volume.
  • the pump unit can be easily replaced by a pump type with a changed pump volume by means of the pump unit.
  • the control device recognizes the pump type by means of the coding on the electronic plug-in connection and sets the associated calculation parameters for determining the injection volume.
  • the pump unit can also include the motor and the associated servo system.
  • An advantageous development of the invention is that a pressure sensor is provided in the feed line, which is connected to the control device. Different pressure ratios in the supply line can lead to different leak rates at which the additive is pushed backwards by the axial piston pump. The resulting dosing errors can if the pressure and the viscosity of the additive are known. This compensation can be carried out by the control device on the basis of the values determined by the pressure sensor.
  • Another advantageous embodiment of the invention consists in that at least one viscosity parameter of the additive can be entered into the control device and that a current viscosity value can be determined by the control device. It is advantageous to take into account the viscosity of the additive when correcting the dosing error, since in addition to the volume, the viscosity also changes with the temperature.
  • the current viscosity value can be calculated in the control device by the determined temperature values.
  • the viscosity parameter can be entered via a keyboard or a bus connection or stored in an EE-Prom.
  • the axial piston pump injects the additive according to a predetermined program through the control device.
  • This program can be selected by a user from a memory of the control device.
  • the additive can be added at the beginning of the delivery or at other specific times in the delivery process.
  • additives which can be controlled by the control device by means of a valve device and can be connected to the axial piston pump. If only one injection line is used, the additive flow can be controlled by timely intelligent switching to the subsequent additive and with a known dead volume (the volume in the suction path, pump and injection line) so that at the beginning of the next dispensing process the new additive is on the injection nozzle, or it is rinsed in between with the base material to avoid mixing. The desired additive is then ready in time for the next dispensing process.
  • dead volume the volume in the suction path, pump and injection line
  • the object is achieved by a method for the metered supply of an additive to a variable volume flow of a base material, in particular when filling heating oil from a mobile tanker into individual tanks, in which a measuring device determines the flow rate of the base material and a control device determines the dependency on the Flow rate controls an injection device for supplying the additive, the measuring device continuously determines volume flow data, the injection device is an axial piston pump which, depending on the volume flow data determined, produces an injection of the additive at an injection pressure that is substantially greater than the volume flow of the base material.
  • control device determines the temperature of the additive before it is fed to the base material and activates a heater for heating the additive when the temperature falls below a minimum and deactivates the heater when a maximum temperature is exceeded. This way the viscosity of the additive is kept at a constant level so that a precisely determined volume is always injected.
  • the measuring device determines the temperature of the volume flow of the base material and / or the additive and actuates the control device such that it supplies a temperature-corrected injection volume of the additive to the volume flow of the base material.
  • the dosing device 50 has a storage container 1 in which a larger amount of an additive 2 to be dosed is stored.
  • a fill level sensor 3 for electronic control and a fill level indicator 9 with a viewing window are arranged as a visual check of the fill level.
  • the fill level sensor 3 is designed as a potentiometric sensor.
  • an electronic empty detector 4 is additionally attached, which emits a signal when a certain minimum stock is undershot.
  • the reservoir 1 is connected to an axial piston pump 15 via an additive feed line 14.
  • an exchangeable filter 6 is provided in the additive feed line 14, which filter serves to filter out granular contaminants.
  • the additive feed line 14 is provided with a sight glass 7, which allows an operator to visually control the additive flow during the additive process. With the sight glass 7, it is possible, for example, to determine whether bubble-free additive 2 is sucked out of the storage container 1.
  • a rotatable paddle wheel as flow indicator 8 is mounted in the additive feed line 14 behind the sight glass 7 in a clearly visible manner.
  • An air separator 10 is also arranged in the additive feed line 14 in order to separate air bubbles that are still present in the additive stream.
  • the air separator 10 preferably has a larger cross-sectional area than the additive feed line 14.
  • the air separator 10 thus also serves as a buffer container during the suction process of the additive 2.
  • an electronic empty detector 12 is provided in the air separator 10, which signals , if the buffer tank is not filled with additive 2.
  • two temperature sensors 11 and 13 are arranged one behind the other in the additive feed line 14, the measurement signals of which are transmitted to a control device 43. Using the two measurement signals, the presence of an additive flow can be determined and its flow rate can be determined.
  • the temperature sensor 11 is located in the air separator / buffer container 10 and thus in quasi-static liquid in order to determine the temperature of the quasi-static additive 2.
  • the second temperature sensor 13, which is in the tapered Pipeline 14 is located and thus exposed to a significantly higher flow rate, is heated to a temperature which is above the additive temperature.
  • the second temperature sensor 13 cools down due to the additive flow.
  • the energy that has to be applied to bring it back to the higher temperature is a measure of the flow rate of the additive 2.
  • the storage container 1 and the additive feed line 14 are thermally insulated.
  • the additive feed line 14 opens into an inlet of the axial piston pump 15.
  • the axial piston pump 15 consists of a rotating cylinder block and a non-rotating swash plate 16 which can be swiveled transversely to the axis of rotation.
  • Axially displaceable pistons with piston rods are mounted in the cylinder bores of the cylinder block.
  • the free ends of the piston rods are held down on a surface of the swash plate 16 by means of a spring mechanism (not shown). Due to the rotation of the cylinder block in relation to the fixed swash plate, the pistons carry out the axial stroke movement.
  • the swash plate 16 points away from the rotating cylinder block, as a result of which a backward movement of the pump pistons and thus the suction pressure in the pump is generated. In the area of the pump outlet, the swash plate 16 points towards the rotating cylinder block and thus forces the reciprocating pistons to move forward and generates the discharge pressure.
  • the rotation of the cylinder drum of the axial piston pump 15 is generated by an electric motor 25.
  • Motor control electronics 27 with a servo system 26 and motor control power electronics 29 are provided to control the speed and torque of the electric motor 25.
  • the axial piston pump 15, the electric motor 25 and the servo system 26 form a pump unit.
  • the pump unit is over Plug connections releasably connected to the electrical and electronic components 27, 28, 29.
  • the axial piston pump suction and discharge volume can be varied by changing the angle of attack of the swash plate 16.
  • an adjustment mechanism 17 is provided which, like the motor control electronics 27, is controlled by the control device 43.
  • the pump outlet is connected to a line channel 40 via an injection line 21.
  • a volume flow of a base material 44, to which the additive material is metered, is to be supplied in the line channel 40.
  • the cross-sectional area of the line channel 40 is substantially larger than the cross-sectional area of the injection line 21.
  • the injection line 21 is arranged transversely to the line channel 40, so that the additive material 2 is essentially perpendicular to the Flow direction 46 of the base material 44 is injected into the conduit 40.
  • a check valve 41 is provided at the injection mouth 42, which prevents the base material 44 from penetrating into the injection line 21 when the injection pressure drops.
  • the check valve 41 is designed as an injection nozzle, which ensures uniform atomization of the additive 2 in the base material 44.
  • a switching valve 19 which can be actuated by an actuator 20 and by means of which the entire injection flow of the additive 2 can be diverted from the axial piston pump 15 to a tap 23. Via this tap 23, for example, a calibration sample can be dispensed into a measuring cup 24 in order to check the correct functioning of the metering device 50. Against Unauthorized actuation of the actuator 20 can be sealed and secured with a monitoring switch 22 as part of a detector device.
  • a measuring device 45 is arranged in the flow direction 46 of the base material 44 in front of the injection port 42 of the injection line 21.
  • the measuring device 45 is used to determine volume flow data of the base material 44, which are necessary for an exact metering of the additive 2.
  • the measuring device 45 consists of a flow sensor 35 and a temperature sensor 36.
  • the measuring signals of the measuring device 45 are passed to the control device 43.
  • the control device 43 has a microcontroller 31 and an analog / digital converter 32.
  • the analog / digital converter 32 converts the analog signals of the sensors used in the metering device 50 into computer-compliant digital signals.
  • the microcontroller 31 calculates the injection volume of the additive 2 necessary to achieve the entered mixing ratio.
  • the microcontroller 31 outputs corresponding control signals to the engine control electronics 27 and the adjustment mechanism 17 in order to set the exact injection volume.
  • the entire process of measured value processing, pump control and ejection of the precisely determined amount of additive at the injection port 42 is set such that the amount of additive is fed exactly to the volume flow segment of the base material 44, in which the measured values were previously determined on the measuring device 45.
  • the control device 43 is also connected to temperature sensors 11 and 13 for measuring the additive temperature and a temperature sensor 34 for measuring the ambient temperature.
  • the microcontroller 31 controls a control device 33, which ensures activation of heating elements 5, 38 and 39 on the storage container 1, the additive feed line 14 and the injection line 21.
  • the heaters 5, 38 and 39 are integrated in insulation in this embodiment.
  • the temperature sensor 34 can also be used to react in time to a falling ambient temperature in order to prevent the supercooling of the additive 2 and thus prevent crystallization.
  • the control device is connected to a pressure sensor 47 in the feed line 21.
  • the microcontroller 31 also has a bus interface 30, via which default information and status messages are exchanged bidirectionally with a higher-level control unit. As a stand-alone system, the microcontroller 31 can carry out the additization independently using the signals from the flow sensor 35 and the temperature sensor 36. The specifications are entered via a keyboard (not shown) and status messages are displayed on a display (not shown).
  • the individual electronic components are supplied with electrical energy from an external network via a power supply unit 28.
  • a power supply unit 28 In this exemplary embodiment for a mobile tank vehicle, the electrical system is provided for this.
  • the metering device 50 is enclosed by a housing 37.
  • the metering device according to the invention even with highly variable volume flows of a base material to be additized as well as with changing environmental conditions, a very high metering accuracy is possible when adding an additive.
  • the invention is therefore very well suited both for stationary operation and for mobile use of tank vehicles etc. Due to the very high dosing accuracy that can be achieved, the dosing device according to the invention can be used in all applications, for example in chemical, pharmaceutical or food technology processes in which a precisely defined amount of an additive has to be added to a volume flow of a base material.
  • the invention it is now possible to carry out time-consuming and cost-intensive metering and mixing processes, which previously had to be carried out separately due to the required metering and mixing accuracy, with a filling process.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Paper (AREA)
  • Accessories For Mixers (AREA)
EP94112351A 1993-08-13 1994-08-08 Dispositif de dosage Withdrawn EP0638355A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9312134U DE9312134U1 (de) 1993-08-13 1993-08-13 Dosiervorrichtung
DE9312134U 1993-08-13

Publications (1)

Publication Number Publication Date
EP0638355A1 true EP0638355A1 (fr) 1995-02-15

Family

ID=6896749

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94112351A Withdrawn EP0638355A1 (fr) 1993-08-13 1994-08-08 Dispositif de dosage

Country Status (2)

Country Link
EP (1) EP0638355A1 (fr)
DE (1) DE9312134U1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006012916A1 (fr) * 2004-08-06 2006-02-09 Ecolab Inc. Système de dosage d’un additif liquide dans une ligne d’adduction d’eau sous pression
US11939209B2 (en) 2020-06-11 2024-03-26 Wayne Fueling Systems Llc Metering pumps for fueling applications

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU742851B2 (en) * 1996-02-21 2002-01-17 Cassiano Limited Method and apparatus for adding fluid additives to fluids
CA2247095A1 (fr) * 1996-02-21 1997-08-28 Cassiano Limited Procede et appareil pour ajouter des additifs fluides a des fluides
DE102020107986B4 (de) 2020-03-23 2025-05-28 Kurt Willig Gmbh & Co. Kg Dosiervorrichtung und Verfahren zum Bestimmen einer abgegebenen und/oder zugeführten Fluidmenge eines Additivstoffes

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1094605A (fr) * 1955-05-23
GB1206746A (en) * 1968-03-23 1970-09-30 Bayer Ag Apparatus for the production of synthetic resins from components which react with each other
US3584977A (en) * 1969-04-17 1971-06-15 Du Pont Process for metering liquid through serially connected pumps
US4277254A (en) * 1980-02-15 1981-07-07 Energy Systems, Incorporated Control system and apparatus for producing compatible mixtures of fuel gases
DE3245940A1 (de) * 1981-12-18 1983-07-07 Lüber, Werner, 9606 Bazenheid Dosierungseinrichtung fuer eine kernsand-aufbereitungsanlage
GB2114905A (en) * 1982-02-17 1983-09-01 Roberts Richard Gwilym Mixing water and fuel oil in proportions
FR2607194A1 (fr) * 1986-11-25 1988-05-27 Baugier Jean Pierre Dispositif autonome d'injection d'additif en proportion reglable dans un ecoulement liquide
FR2646937A1 (fr) * 1989-05-12 1990-11-16 Lafon Prod Sa Procede et systeme de dosage automatique d'un additif dans un hydrocarbure
GB2242181A (en) * 1990-03-20 1991-09-25 Whitbread & Co Plc A fluid dosing and mixing system, e.g. for cleaning beer lines

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1094605A (fr) * 1955-05-23
GB1206746A (en) * 1968-03-23 1970-09-30 Bayer Ag Apparatus for the production of synthetic resins from components which react with each other
US3584977A (en) * 1969-04-17 1971-06-15 Du Pont Process for metering liquid through serially connected pumps
US4277254A (en) * 1980-02-15 1981-07-07 Energy Systems, Incorporated Control system and apparatus for producing compatible mixtures of fuel gases
DE3245940A1 (de) * 1981-12-18 1983-07-07 Lüber, Werner, 9606 Bazenheid Dosierungseinrichtung fuer eine kernsand-aufbereitungsanlage
GB2114905A (en) * 1982-02-17 1983-09-01 Roberts Richard Gwilym Mixing water and fuel oil in proportions
FR2607194A1 (fr) * 1986-11-25 1988-05-27 Baugier Jean Pierre Dispositif autonome d'injection d'additif en proportion reglable dans un ecoulement liquide
FR2646937A1 (fr) * 1989-05-12 1990-11-16 Lafon Prod Sa Procede et systeme de dosage automatique d'un additif dans un hydrocarbure
GB2242181A (en) * 1990-03-20 1991-09-25 Whitbread & Co Plc A fluid dosing and mixing system, e.g. for cleaning beer lines

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006012916A1 (fr) * 2004-08-06 2006-02-09 Ecolab Inc. Système de dosage d’un additif liquide dans une ligne d’adduction d’eau sous pression
US11939209B2 (en) 2020-06-11 2024-03-26 Wayne Fueling Systems Llc Metering pumps for fueling applications

Also Published As

Publication number Publication date
DE9312134U1 (de) 1993-10-28

Similar Documents

Publication Publication Date Title
DE69937827T2 (de) Verfahren und vorrichtung zur abfüllung von flüssigkeiten und feststoffen
DE69713117T2 (de) Ausgabevorrichtung mit vom Oktangehalt abhängigen Mischen von Komponenten
DE69411283T2 (de) Vorrichtung zum mit genauigkeit zuführen von flüssigkeit
DE69710447T2 (de) Vorrichtung und verfahren zur öleinspritzung in der verarbeitung von polymeren
EP2115400A2 (fr) Procédé et dispositif pour mesurer en continu une consommation dynamique d'un fluide
AT513651B1 (de) Mischanlage für viskose Medien
EP0615825B1 (fr) Méthode et appareil pour remplir des moules avec une résine de coulée ou des fluides similaires coulables
EP0638355A1 (fr) Dispositif de dosage
DE102021123434A1 (de) Dosiereinrichtung und Verfahren zum dosierten Ausgeben einer viskosen Wärmeleitmasse
EP0806238B1 (fr) Appareil pour fournir des quantités dosées d'au moins deux composants fluides d'une masse réactive
DE68917590T2 (de) Herstellung einer mischung aus flüssigkeiten.
EP0989062A1 (fr) Dispositif pour remplir un liquide pharmaceutique sous pression dans un récipient
DE3216577C2 (de) Hochdruckreinigungsgerät
EP0010743B1 (fr) Dispositif de dosage
EP0647458B1 (fr) Dispositif mélangeur pour ajouter des additifs à un liquide
DE102006014074B4 (de) Dosiersystem und Verfahren zur Abgabe eines Zuschlagstoffes in ein Abgassystem einer Brennkraftmaschine
DE60005348T2 (de) Vorrichtung und verfahren zum kontrollieren der rückgewinnung von dämpfen in kraftstoff-zapfstellen
DE4344922C2 (de) Vorrichtung zum Befüllen einer oder mehrerer Gießformen mit gießfähig flüssigen Medien
DE19536823C1 (de) Prüfvorrichtung zum Ermitteln von Betriebskennwerten des Antriebs einer Dosierpumpe
EP0566976A1 (fr) Procédé et dispositif de décharge de liquides ou gaz
DE102009039459A1 (de) Verfahren zum Betreiben eines Druckmaschine-Versorgungsgerät-Systems
DE102010004068B4 (de) Verfahren und Befüllvorrichtung zum Befüllen einer Kartusche mit zumindest einem Material
DE3521948C2 (fr)
DE2346916A1 (de) Einrichtung zum anzeigen des treibstoffverbrauchs pro kilometer bei einem motorfahrzeug mit einspritzbrennkraftmaschine
DE4403663C1 (de) Kraftstoffgemisch-Ausgabevorrichtung

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH DE DK ES FR GB IE IT LI LU NL PT SE

17P Request for examination filed

Effective date: 19941230

17Q First examination report despatched

Effective date: 19960906

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19970117